Bug 1361989 (CVE-2016-2837)

Summary: CVE-2016-2837 Mozilla: Buffer overflow in ClearKey Content Decryption Module (CDM) during video playback (MFSA 2016-77)
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
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Priority: low    
Version: unspecifiedCC: jhorak, security-response-team, stransky
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Last Closed: 2016-09-23 05:34:18 UTC Type: ---
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Bug Blocks: 1360577    

Description Huzaifa S. Sidhpurwala 2016-08-01 06:37:21 UTC 
An anonymous security researcher working with Trend Micro's Zero Day Initiative reported a buffer overflow in the ClearKey Content Decryption Module (CDM) used by the Encrypted Media Extensions (EME) API. This vulnerability can be triggered using a malformed video file due to incorrect error handling. This could allow arbitrary code execution if combined with a second vulnerability that allows an escape from the Gecko Media Plugin (GMP) sandbox. Without such a vulnerability, the buffer overflow is contained within the GMP sandbox and cannot be exploited.



External Reference:

https://www.mozilla.org/security/announce/2016/mfsa2016-77.html


Acknowledgements:

Name: the Mozilla project
Comment 1 errata-xmlrpc 2016-08-03 08:09:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2016:1551 https://rhn.redhat.com/errata/RHSA-2016-1551.html